Grinding, refining, and mixing machine



Augv 9 J. MCINTYRE GRINDING, REFINING, AND MIXING MACHINE Filed Deo. 6, 1926 attenua- Patent Nb. 1,561,427,

.raras JOHN MCINTYRE, OF PORTOBELLO, EDNBU'RGH, SCOTLAND, ASSIGNOR OF ONE-HALF To swINrnN BRAMLEY-ivroonn, or NEW YORK, 1v. Y.

GRINDING, REFINING, .AND MIXING MACHINE.

Application led. December T he present invention relates to grinding', refining and mixing machines for grinding, refining and mixing cocoa beans, chocolate, chemicals and other similar substances, and the invention aims to provide a novel and improved grinding element for such a machine, this invention being an improvement over the grinding elements disclosed in my granted Dec. 8, 1925.

A further object of the invention is the novel arrangement of rods on the face of a plate or blade, with provisions for the feeding of the material between the rods as the grinding element is moved within a cylinder containing the material.

A further object is the provision of front and rear rods 'on the plate or blade and means for mounting said plate or blade so as to distribute and equalize the pressure between the front and rear rods.

1With the foregoing and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts, 'as hereinafter described and claimed, it beingk understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invention.

r1`he invention is illustrated in the accompanying drawing, wherein Figure 1 is a face or plan view of the complete grinding element.

Fig. 2 is a similar view ofthe plates or blades, with a portion of one. plate broken away, and the rods and other parts removed.

Fig. 3 is a rear edge view of the grinding element.

Fig. 4 is an 'end view thereof.

Fig.y 5 is a plan view of the keyplate.

Fig. 6 is an end view, with portions shown in section, showing' the grinding elements at- Y tached to the rotor working within. a cylinder.

In carrying out theinvention there is pro-` vided a plate or blade 7 composed of'suitable resilient sheet metal, and which is preferably elongated transversely of the line of movement thereof or parallel to the airis around which the grinding element moves. y The blade 7 is carriedby one or more blades' l respective hooks 11 and 12.

ends of the blade 7 and said 10 at suitable points 6, 1926, Serial No. 153,011, and in Great Britain February 27, 1926.

longitudinally of the blade 7 substantially midway between thefront and rear edges thereof.

Rods 10 are disposed on blade 7 and are spaced equidistant on either side of the longitudinal line of the rivets or studs 9. Each rod extends substantially one-half the length of the blade 7, with the rods disposed end to end, and the rods are preferably of circular cross-section, although they maybe of any suitable section. As shown, the rods are arranged in pairs forwardly and rearwardly of the longitudinal center line of the blade 7 along which the rivets 9 are disposed, although here may be any number of such rods.

The ro'ds 10 have their opposite and adjacent ends bent back inwardly to form the The hooks 11 engage 'over the blade has openings 13 intermediate its ends through which the hooks 12 are inserted. A lreyplate 14 is slid across the inner surface of the bla-de 7 to enter the hooks 12, and has an open slot 15 toreceive saidhoolrs, whereby said keyplate 14 will hold the inner ends of the rods in place against the blade 7.

Bars 16 and 17 are secured manner, such as by rivets, suitable securing means, to the face of the blade 7 along the rear and front edges thereof, respectively, and contact with the rearmost and foremost rods 1.0 to assist in holding saidV rod-s in place.

in any suitable said` rods apart and to maintain them in properspaced relation on the face of the blade. The ends of the blade 7 also have extensions 21 assisting in spacing the outer .ends of the rods apart.

- The blade 7 is provided between the rods with apertures or holes 22 through which the material may pass from the inner side of the blade 7 tothe spaces` between the Vrods 10.

As shown in Fig.v 6, the blades or plates 8 are secured to an adjusting rocker 23 carried by a rotor 24: to serve as leaf springs trailthe face of the..

the bends of bolts or other The front bar y v17 has pins'or lingers 18 projecting through l U t) ing from said rocker to piess the blade 7 outwardly antLhold the rods l0 against the inner surface of the cylinder or casing in which the rotor operates, whereby the material is crushed or ground between the surface 25 and rods l0, as disclosed in the patent liereinbefoie mentioned. lie pressure of the blades 8 is tiansmitted through the rivets or studs 9 to the blade 7 intermediate the front and rear rods l0, to distribute the pressure to said front and rear rods substantially equally, and the blade 7 is bowed outwardly, as seen in F ig. 6, under the pressure received from the blades 8. rlfhis .equalizcs the pressure on the rods l0. Furthermore, the blaoes 8 entend across the apertures at tlie inner side of and spaced from the blader?, and during the forward movement of the grinding element, 'the material is forced between the blades 7 and 8, and is therefore forced outwardly through the apertures between the rods l0, to be ound or refinet.

llaviiig thus described the invention, what is claimed as new is l. i grinding element comprising a blade, and spaced rods secured on the face thereof to Contact with a grinding surface, said blade having apertures between said rods for the flow of material through said apertures.

2. A grinding elementcomprising a resilient blade, front and reai' rods secured on the face thereof, and resilient means connected to said blade between the front and rear rods to press the rods against a grinding surface.

3. A grinding yelement comprising a resilisnt blade,y front and rear rods secured on the face thereof, and resilient means connected to said blade between the front and rear rods to press the rods against a grinding surface, said rods being spaced apart and the blade having apertures between said rods.

4. A grinding element comprising a resilient blade, front and rear rods secured on the face thereof, and a resilient blade connected to the firstnamed blade bet-weon "he f` and rear rods to press the rods against a grinding surface and spaced from the first named blade. l

fr grinding element comprising a resilient blade, front and rear rods secured on the face thereof, and a resilient blade connected to. the firstnanied blade'between the front and rear rods to press the rods against a grinding surface and spaced from the iirstnamed blade, said rods being spaced apart, the firstnamed blade having apertures between `said rods, and the secondiianied blade extending across,- said apeituresv to against a grinding surface, the tirstnamed blade having apertures between said grinding portions, and the secondnamed blade ea'- tending across said apertures to force inaterial which passes between the blades through said apertures.

7. ii grinding element comprising a resilient blade having front and roar grinding' portions, and resilient means connected to said blade at such a point as to apply pressure to said blade between the front and rear grindingiortions and thereby spring the blade and press said portions against winding surface.

8. grinding element comprising a resilient blade having front and reai grinding portions to bear against a grinding surface, and a resilient blade connected to the firstnamed blade at such a point as to apply pressure to the firstnamed blade between said front and rear portions toward said grinding surface and thereby press said portions against said surface.

9. A Grinding element comprising a sheet metal blade having spaced elongated grindipiig portiops to bear against a. grinding suri'ace and follow one after the other in th increment of the blade along said surfac with said portions disposed transversely of the line of movement of the blade, said olade having apertures between said portions for the flow of material through said apertures to pass in front of those Agrinding portions in rear of the apertures.

l0. A grinding element comprising a blade having grinding portions thereonand apertures for the flow ofmaterial therethrough topass to said portions, anda. re-' silient blade connected to the lirstnamed blade for pressing said portions against a grinding surface, the secondnamed blade ei;- tending across said apertures to force inaterial which passes between the blades through said apertures. i

ll. A grinding element comprising a blade having grinding Vportions at' one` side thereof to bear against a grinding surface and having apertures for the flow of material through the blade to pass to said' portions, andr means, at the opposite sideof the blade arranged for forcing.. the material through sai-d apertures.` Y

in testiino-nyv whereof l lier-emite my- Signatujie. Y

JOHN' MoIN-EYRE 

